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Thread: max connections -- ip_conntrack

  1. #1

    max connections -- ip_conntrack

    hi there

    i thought
    "ip_conntrack version 2.1 (128 buckets, 1024 max)"
    meant 1024 cennections at max...

    but if i use max 900 connections for filesharing, i get
    "table full, dropping packet." -messages
    anyway!

    i hope someone can help me...
    can a modify the asus to do more connections - 5000 for example
    thanx

  2. #2
    Join Date
    Apr 2004
    Location
    France
    Posts
    16
    i had the same problem.
    I 've increased the "ip_conntrack_max" and it will work perfectly now.
    http://lists.debian.org/debian-firew.../msg00011.html

  3. #3
    Join Date
    Dec 2003
    Location
    Russian Federation
    Posts
    8,353
    Yes, the thing is really simple. Good finding.
    You can set this permanently using commands like this:
    Code:
    nvram set bootCmdXXX="echo 4096 > /proc/sys/net/ipv4/ip_conntrack_max"
    nvram commit

  4. #4

    doesn´t work for me

    thanx 4 help

    but after commiting the changes (and rebooting) , if see no difference !
    the syslog shows:
    ip_conntrack version 2.1 (128 buckets, 1024 max) - 344 bytes per conntrack
    as before!

    but i think it´s my mistake.
    (i never used the nvram-command-thing before)
    can you check if i´m doing it right:

    i´m using CR3 (flashed into asus - not from USB-device)

    i opend a telnet session to the router and entered at root directory:
    nvram set bootCmd1="echo 4096 > /proc/sys/net/ipv4/ip_conntrack_max"
    nvram commit
    reboot

    the rooter reboots but after that averything is the same as before.
    do i have to save the new setting in some way???
    is this possible without a usb-device?

    thank you very much

  5. #5
    Join Date
    Dec 2003
    Location
    Russian Federation
    Posts
    8,353
    Quote Originally Posted by dizz
    thanx 4 help

    but after commiting the changes (and rebooting) , if see no difference !
    the syslog shows:
    ip_conntrack version 2.1 (128 buckets, 1024 max) - 344 bytes per conntrack
    as before!
    It's ok, it show the compiled in defaults and nvram thing changes this later.

    If you want to check the current value enter
    Code:
    cat /proc/sys/net/ipv4/ip_conntrack_max
    after the firmware has fully ininitialized (60-90 seconds after reboot).

  6. #6

    Question

    I used to have this issue too (amongst others) and just upgraded to version 1.8.1.7 hoping my wan port will finally stay up, but is modifying this setting still required in this version? and, if so, how do I modify it as I cannot telnet with this version?

    Thanks,
    Patrick

  7. #7

    Thumbs down

    never mind, this thing keeps dying on me, either the wan port freezes, or the lan port... it will never stay alive for more then 12 hours. One way ticket for trashcan and no more asus

  8. #8
    Join Date
    Nov 2003
    Location
    Eindhoven
    Posts
    2,407
    Quote Originally Posted by bumper
    never mind, this thing keeps dying on me, either the wan port freezes, or the lan port... it will never stay alive for more then 12 hours. One way ticket for trashcan and no more asus
    set your port to a fixed speed first!!! that's the number one to prevent from dying
    do this in the webinterface (yes it works this time)

    if you are using a usbflashdisk/hd you can use a file which start the ipconntrack thingy

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